ENGL E412 Technical Information
Tube
Amp
Technology
Guitar Speaker Cabinet
E412
Technical Information
1. basic technical information to all ENGL 412 speaker cabinets
R
SPEAKER CABINET
8
L
8
L
8
R
8
R
E412 cabinet:
Front layout
THRU / RIGHT INPUT jack
in Mono mode:
you can use this jack as thru connector
to route the signal to an additional cabinet,
refer to example #3;
in Stereo mode:
use this jack as input connector
for the right speaker side (R;)
INPUT / LEFT jack
in Mono mode:
use this jack as input connector;
in Stereo mode:
use this jack as input connector
for the left speaker side (L);
MONO / STEREO switch
select Mono or Stereo mode;
Mono mode:
4 speakers overall impedance 8 ohms;
Stereo mode:
2 speakers each stereo channel,
16 ohms impedance per channel;
The following pages depicts a few
samples for diverse setups between
amplifiers an speaker 412 cabinets.
THRU
RIGHT
MONO
STEREO
INPUT
LEFT
E412 speaker cabinet:
rear connection panel
8
INPUT
LEFT
jack
L
THRU
RIGHT
jack
8
STEREO
R
MONO
switch
E412
cabinet:
wiring
diagram
8
R
8
L
8: 8 ohms speaker impedance
R: speaker right side
right stereo channel
L: speaker left side
left stereo channel
overall impedance Mono mode:
8 ohms
overall impedance Stereo mode:
2 x 16 ohms
Important note:
ensure that the Mono / Stereo switch
is set to "Stereo" before you connect
the cabinet to 2 poweramp outputs!
switch setting:
Mono
mode
MONO
Stereo
mode
MONO
STEREO
STEREO
2. one100 watts amp head combined with one ENGL 412 speaker cabinet
R
412 cabinet:
Ch I Gain
Bass
Middle
Treble-Clean
Treble-Crunch
Clean Volume Crunch Volume
Presence
Depth Punch
BrightBottom
Tube
Amp
Ch II Gain
Bass
Mid-open
Input
Lo Lead
Hi Lead
Bottom
Bottom
V1 V2 V3 V4
Power Tube Monitor
Mid-focused
Treble
Lo Lead Vol.
Hi Lead Vol.
open/
focused
Powerball
R
6L6GC
powered
Master A
Master B
Gain
Ch I /II
Lo /Hi
Stand By
Power
SPEAKER CABINET
THRU
rear connection panel
set to
Mono
MONO
INPUT
8
L
8
L
8
RIGHT
STEREO
R
speaker impedance: 8 ohms
output impedance: 8 ohms
8
R
48Or 8And Or-> 816Or 16And 16
4 Ohms Parallel
1 x 4 Ohms
2 x 8 Ohms
Amp head: Poweramp Output
8 Ohms Parallel
1 x 8 Ohms
2 x 16 Ohms
3. one 100 watts head combined with two ENGL 412 speaker cabinets
THRU
RIGHT
1 x 4 Ohms
2 x 8 Ohms
THRU
RIGHT
R
412 cabinet #1:
rear connection panel
set to
Mono
MONO
STEREO
option 1 & 2
8 Ohms Parallel
1 x 8 Ohms
2 x 16 Ohms
R
412 cabinet #2:
rear connection panel
set to
Mono
MONO
STEREO
speaker
Ch I Gain
Bass
Middle
Treble-Clean
Treble-Crunch
Clean Volume Crunch Volume
Presence
Depth Punch
BrightBottom
Tube
Amp
Ch II Gain
Bass
Mid-open
Input
Lo Lead
Hi Lead
Bottom
Bottom
V1 V2 V3 V4
Power Tube Monitor
Mid-focused
Treble
Lo Lead Vol.
Hi Lead Vol.
open/
focused
8
L
Powerball
R
6L6GC
powered
Master A
Master B
Gain
Ch I /II
Lo /Hi
Stand By
Power
8
R
impedance:
cabinet #1
8 ohms;
cabinet #2
8 ohms;
connected
in parallel:
4 ohms;
output
impedance:
4 ohms;
SPEAKER CABINET
option 2
8
L
8
L
8
L
8
R
8
R
option 1
use either
option 1:
cabinet #2
connected
to the
4 ohms
Poweramp
Output
or
option 2:
cabinet #2
connected
to THRU
jack of
cabinet #1
48Or 8And Or-> 816Or 16And 16
4 Ohms Parallel
Amp head: Poweramp Output
SPEAKER CABINET
8
R
LEFT
16 Ohms
INPUT
LEFT
16 Ohms
INPUT
LEFT
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